Point(1) = {0,0,0,.5};
Point(2) = {10,0,0,.5};
Point(3) = {10,5,0,.5};
Point(4) = {0,5,0,.5};
Line(1) = {1,2};
Line(2) = {2,3};
Line(3) = {3,4};
Line(4) = {4,1};
Line Loop(5) = {3,4,1,2};
Plane Surface(6) = {5};
Physical Surface(7) = {-6};
Physical Line(8) = {2,3,4,1};
